diff --git a/test_regress/t/t_interface_gen5_noinl.pl b/test_regress/t/t_interface_gen5_noinl.pl
new file mode 100755
index 000000000..1e8c1b963
--- /dev/null
+++ b/test_regress/t/t_interface_gen5_noinl.pl
@@ -0,0 +1,21 @@
+#!/usr/bin/perl
+if (!$::Driver) { use FindBin; exec("$FindBin::Bin/bootstrap.pl", @ARGV, $0); die; }
+# DESCRIPTION: Verilator: Verilog Test driver/expect definition
+#
+# Copyright 2003-2009 by Wilson Snyder. This program is free software; you can
+# redistribute it and/or modify it under the terms of either the GNU
+# Lesser General Public License Version 3 or the Perl Artistic License
+# Version 2.0.
+
+top_filename("t/t_interface_gen5.v");
+
+compile (
+    v_flags2 => ["-Oi"],
+    );
+
+execute (
+    check_finished=>1,
+    );
+
+ok(1);
+1;